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Experimental comparison of first and second-order similarities in a scientometric context
Stockholm University, University Library.
2012 (English)In: Scientometrics, ISSN 0138-9130, E-ISSN 1588-2861, Vol. 90, no 2, 675-685 p.Article in journal (Refereed) Published
Abstract [en]

The measurement of similarity between objects plays a role in several scientific areas. In this article, we deal with document-document similarity in a scientometric context. We compare experimentally, using a large dataset, first-order with second-order similarities with respect to the overall quality of partitions of the dataset, where the partitions are obtained on the basis of optimizing weighted modularity. The quality of a partition is defined in terms of textual coherence. The results show that the second-order approach consistently outperforms the first-order approach. Each difference between the two approaches in overall partition quality values is significant at the 0.01 level.

Place, publisher, year, edition, pages
2012. Vol. 90, no 2, 675-685 p.
Keyword [en]
Bibliographic coupling, Cluster analysis, Document-document similarity, Science mapping, Similarity order, Textual coherence
National Category
Other Social Sciences
Research subject
biblioteks- och informationsvetenskap
URN: urn:nbn:se:su:diva-74494DOI: 10.1007/s11192-011-0491-xISI: 000299088900021OAI: diva2:509943
Available from: 2012-03-14 Created: 2012-03-14 Last updated: 2012-03-14

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Ahlgren, Per
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